llvm/test/CodeGen/ARM/2009-04-06-AsmModifier.ll
Dale Johannesen 442b7bfc80 Use the output of the asm so the optimizer won't
delete it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69018 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-14 01:51:40 +00:00

21 lines
671 B
LLVM

; RUN: llvm-as < %s | llc -march=arm | grep {swi 107}
define i32 @_swilseek(i32) nounwind {
entry:
%ptr = alloca i32 ; <i32*> [#uses=2]
store i32 %0, i32* %ptr
%retval = alloca i32 ; <i32*> [#uses=2]
store i32 0, i32* %retval
%res = alloca i32 ; <i32*> [#uses=0]
%fh = alloca i32 ; <i32*> [#uses=1]
%1 = load i32* %fh ; <i32> [#uses=1]
%2 = load i32* %ptr ; <i32> [#uses=1]
%3 = call i32 asm "mov r0, $2; mov r1, $3; swi ${1:a}; mov $0, r0", "=r,i,r,r,~{r0},~{r1}"(i32 107, i32 %1, i32 %2) nounwind ; <i32> [#uses=1]
store i32 %3, i32* %retval
br label %return
return: ; preds = %entry
%4 = load i32* %retval ; <i32> [#uses=1]
ret i32 %4
}